Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field
Micro-nanocrystalline microstructures which are characterized by TiB2 platelets of the average thickness close to or smaller than 1 μm can be achieved in nearly full-density solidified TiC-TiB2 ceramic composites with Cr-based alloy phases by combustion synthesis in ultra-high gravity field of 2500 ...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/358746 |
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| author | Xuegang Huang Chun Yin Zhongmin Zhao Long Zhang Junyan Wu |
| author_facet | Xuegang Huang Chun Yin Zhongmin Zhao Long Zhang Junyan Wu |
| author_sort | Xuegang Huang |
| collection | DOAJ |
| description | Micro-nanocrystalline microstructures which are characterized by TiB2 platelets of the average thickness close to or smaller than 1 μm can be achieved in nearly full-density solidified TiC-TiB2 ceramic composites with Cr-based alloy phases by combustion synthesis in ultra-high gravity field of 2500 g. The filler phases in ceramic composites are actually Cr-based alloy with a little solidified solution of Ni atoms and Al atoms. The hardness, flexural strength, and fracture toughness of the materials are 18.5 ± 1.5 GPa, 650 ± 35 MPa, and 16.5 ± 1.5 MPa⋅m0.5, respectively. The improved fracture toughness of TiC-TiB2 ceramic composites results from crack deflection, crack bridging, and pull-out by a large number of fine TiB2 platelets and plastic deformation with some Cr-based alloy phases. |
| format | Article |
| id | doaj-art-f64fc4f490c7490e92edca568dd36de8 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f64fc4f490c7490e92edca568dd36de82025-02-03T07:25:15ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/358746358746Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity FieldXuegang Huang0Chun Yin1Zhongmin Zhao2Long Zhang3Junyan Wu4Department of Vehicle and Electrical Engineering, Mechanical Engineering College, Shijiazhuang 050003, ChinaSchool of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaDepartment of Vehicle and Electrical Engineering, Mechanical Engineering College, Shijiazhuang 050003, ChinaDepartment of Vehicle and Electrical Engineering, Mechanical Engineering College, Shijiazhuang 050003, ChinaDepartment of Vehicle and Electrical Engineering, Mechanical Engineering College, Shijiazhuang 050003, ChinaMicro-nanocrystalline microstructures which are characterized by TiB2 platelets of the average thickness close to or smaller than 1 μm can be achieved in nearly full-density solidified TiC-TiB2 ceramic composites with Cr-based alloy phases by combustion synthesis in ultra-high gravity field of 2500 g. The filler phases in ceramic composites are actually Cr-based alloy with a little solidified solution of Ni atoms and Al atoms. The hardness, flexural strength, and fracture toughness of the materials are 18.5 ± 1.5 GPa, 650 ± 35 MPa, and 16.5 ± 1.5 MPa⋅m0.5, respectively. The improved fracture toughness of TiC-TiB2 ceramic composites results from crack deflection, crack bridging, and pull-out by a large number of fine TiB2 platelets and plastic deformation with some Cr-based alloy phases.http://dx.doi.org/10.1155/2015/358746 |
| spellingShingle | Xuegang Huang Chun Yin Zhongmin Zhao Long Zhang Junyan Wu Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field Advances in Materials Science and Engineering |
| title | Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field |
| title_full | Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field |
| title_fullStr | Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field |
| title_full_unstemmed | Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field |
| title_short | Microstructures and Toughening of TiC-TiB2 Ceramic Composites with Cr-Based Alloy Phase Prepared by Combustion Synthesis in High-Gravity Field |
| title_sort | microstructures and toughening of tic tib2 ceramic composites with cr based alloy phase prepared by combustion synthesis in high gravity field |
| url | http://dx.doi.org/10.1155/2015/358746 |
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